Abstract: A remailable envelope is disclosed which comprises first and second extensions attached to the front and rear panels and first and second closure flaps attached to the first and second extensions. The nominal height of the rear wall is greater than the nominal height of the front wall, however, by selectively folding the envelope panels about the score lines provided for the first and second extensions, and first and second closure flaps, the envelope structure for the remailing can be made smaller than the envelope structure for the first mailing use.

Abstract: A personalized envelope assembly including a return envelope is formed from two separate pieces of material comprising an outer blank for forming a letter sheet or the like and a patch which is adhered to the blank to form the rear panel of the return envelope. The letter sheet blank is prepared in web form and the patch is applied to the blank using window applying equipment or the like. The letter sheet blank further includes one or more coupon elements integral therewith and detachable therefrom for return mail.

Abstract: An envelope and blank structure is disclosed for use with promotional mailings. The envelope includes at least one window opening in its front panel which is normally covered by a sheet of transparent window material. The outer surface of the window material is in turn applied with a non-transparent coating for obscuring a message included within the envelope beneath the window opening. The message may subsequently be revealed without opening the envelope by scratching or rubbing the coating from the window material.

Abstract: A first class envelope adapted to be attached to a host piece of second, third or fourth class matter, and useful for sending first class matter at the lower postal rate for the host piece comprises a substantially conventional envelope assembly with a front face and a rear face. The rear face of the envelope is provided with detachable strips formed by perforated lines in the envelope material. The detachable strips are applied with adhesive for attachment of the envelope to its host piece. When the envelope is detached, the only residue that remains on the host piece is the detachable strips from the envelope.

Abstract: A tamper detection envelope is disclosed wherein the closure flap of the envelope is applied with a pattern of spaced slits to produce a weakened structure that will break during tampering and be obvious under visual observation. The spaced slits are separated by normally unbroken connectors and are arranged in generally parallel lines that criss cross one another at substantially right angles to produce subpanels of a generally diamond configuration within the closure flap. A strip of adhesive is applied between the closure flap and the envelope rear panel at least in the region of the subpanels for closing the envelope. Any subsequent attempt to open the envelope by lifting the closure flap will break the normally unbroken connections between the slits to provide a visual indication that the envelope has been tampered with.

Abstract: The two way envelope of the present invention comprises front, rear and return panels that are joined together and folded to provide a semi-permanent fully enclosed pocket for the first mailing and a separate permanent fully enclosed pocket for the return mailing. The permanent pocket for the return mailing is formed by adhering the rear panel to the return panel. The semi-permanent pocket for the first mailing is formed by providing at least the front panel and one of the rear or return panels with side extensions that are adhered together. For return, the side extensions and the front panel are removed leaving intact the return envelope portion with its permanent pocket.

Abstract: A two way envelope for initial hand delivery and subsequent return through the U.S. Postal Service is prepared from a single blank of envelope material or the like. The envelope is divided into two detachable portions along a perforated line. The first portion includes a means for hanging the envelope from a door knob or the like during initial delivery, and the second portion includes a sealable flap for first class delivery when returned. The means for hanging the envelope is adapted for use on either round door knobs or elongated, closed end door handles, and includes means for securing the envelope in place on the door knob or door handle.

Abstract: The non-gusseted, side seamed expansible envelope of the present invention comprises a back panel, front panel and closure flap prepared from a single blank of paper or the like. The side seams are formed from a first pair of flaps foldably attached to the ends of the back panel and a second pair of flaps foldably attached to the ends of the front panel. Each of the side seam flaps are applied with diagonally oriented perforated lines that are located equidistant from the score line separating the front and back panels, and the second pair of side seam flaps are also applied with longitudinally oriented perforated lines which together with the diagonally oriented perforated lines provide the expansion characteristics of the envelope.

Abstract: A compartmented envelope is disclosed which includes two compartments front-to-back formed by non-overlapping elongated end closure flaps. The front compartment includes a window behind which a preaddressed item might be placed and the envelope is arranged so that the window compartment is in front of the envelope stuffer when the preaddressed item is stuffed. The envelope panels are preapplied with a pressure sensitive adhesive that will only adhere to itself in a pattern so that items smaller than the envelope itself can be inserted and locked in place within the front compartment while the second compartment is available for larger more bulky items. In other embodiments, the envelope includes an unsecured end closure flap that may be opened for postal inspection when the envelope is carrying both first and third class matter, and/or a means for gaining access to one compartment independently of the other.

Abstract: A compartmented mailing envelope for combining both first and third class mail includes a small front compartment and a larger rear compartment. The two compartments are formed from a blank of paper on which there is adhered a patch of paper. A single top closure flap is foldably attached to one end of the blank for sealing both compartments simultaneously. Meanwhile, a means is provided in conjunction with the top closure flap to provide access to the small front compartment without disturbing the contents of the larger rear compartment.

Abstract: A paper product intended for use as an advertising piece or the like and capable of being made from a single web of material by a web fed machine consists of a multiple paged brochure, a return mailing envelope, and a return application or order form combined in a single package adapted in one form for non-mailing uses, such as a newspaper drop-in or hand-out, and in another form as a mailing package.